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Finding the Fourth Proportional to 5,280,768,425.05, 7,921,152,637.58 and 5,280,768,425.05

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Solution

The fourth proportional to 5,280,768,425.05, 7,921,152,637.58 and 5,280,768,425.05 is: 7,921,152,637.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,768,425.05 : 7,921,152,637.58 = 5,280,768,425.05 : x
  2. Step 2: Convert to fraction form
    5,280,768,425.05/7,921,152,637.58 = 5,280,768,425.05/x
  3. Step 3: Cross multiply
    5,280,768,425.05x = 7,921,152,637.58 × 5,280,768,425.05
  4. Step 4: Simplify right side
    5,280,768,425.05x = 41,829,772,738,533,990,400
  5. Step 5: Solve for x
    x = 41,829,772,738,533,990,400/5,280,768,425.05
  6. Step 6: Final answer
    x = 7,921,152,637.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.