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Finding the Fourth Proportional to 7,445,220.10, 10,402,050.50 and 7,445,220.10

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Solution

The fourth proportional to 7,445,220.10, 10,402,050.50 and 7,445,220.10 is: 10,402,050.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445,220.10 : 10,402,050.50 = 7,445,220.10 : x
  2. Step 2: Convert to fraction form
    7,445,220.10/10,402,050.50 = 7,445,220.10/x
  3. Step 3: Cross multiply
    7,445,220.10x = 10,402,050.50 × 7,445,220.10
  4. Step 4: Simplify right side
    7,445,220.10x = 77,445,555,463,815.05
  5. Step 5: Solve for x
    x = 77,445,555,463,815.05/7,445,220.10
  6. Step 6: Final answer
    x = 10,402,050.50

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1.5x scale

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.