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Finding the Fourth Proportional to 62,612.96, 93,860.64 and 21,030.80

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Solution

The fourth proportional to 62,612.96, 93,860.64 and 21,030.80 is: 31,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,612.96 : 93,860.64 = 21,030.80 : x
  2. Step 2: Convert to fraction form
    62,612.96/93,860.64 = 21,030.80/x
  3. Step 3: Cross multiply
    62,612.96x = 93,860.64 × 21,030.80
  4. Step 4: Simplify right side
    62,612.96x = 1,973,964,347.71
  5. Step 5: Solve for x
    x = 1,973,964,347.71/62,612.96
  6. Step 6: Final answer
    x = 31,526.45

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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.