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Finding the Fourth Proportional to 21,714,689.60, 32,569,701.60 and 5,758,337.60

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Solution

The fourth proportional to 21,714,689.60, 32,569,701.60 and 5,758,337.60 is: 8,636,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714,689.60 : 32,569,701.60 = 5,758,337.60 : x
  2. Step 2: Convert to fraction form
    21,714,689.60/32,569,701.60 = 5,758,337.60/x
  3. Step 3: Cross multiply
    21,714,689.60x = 32,569,701.60 × 5,758,337.60
  4. Step 4: Simplify right side
    21,714,689.60x = 187,547,337,344,060.16
  5. Step 5: Solve for x
    x = 187,547,337,344,060.16/21,714,689.60
  6. Step 6: Final answer
    x = 8,636,887.78

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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.