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Finding the Fourth Proportional to 8,886,458.60, 12,457,838.20 and 8,886,458.60

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Solution

The fourth proportional to 8,886,458.60, 12,457,838.20 and 8,886,458.60 is: 12,457,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886,458.60 : 12,457,838.20 = 8,886,458.60 : x
  2. Step 2: Convert to fraction form
    8,886,458.60/12,457,838.20 = 8,886,458.60/x
  3. Step 3: Cross multiply
    8,886,458.60x = 12,457,838.20 × 8,886,458.60
  4. Step 4: Simplify right side
    8,886,458.60x = 110,706,063,409,798.52
  5. Step 5: Solve for x
    x = 110,706,063,409,798.52/8,886,458.60
  6. Step 6: Final answer
    x = 12,457,838.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.