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Finding the Fourth Proportional to 35,911.60, 53,870.10 and 9,615.76

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Solution

The fourth proportional to 35,911.60, 53,870.10 and 9,615.76 is: 14,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,911.60 : 53,870.10 = 9,615.76 : x
  2. Step 2: Convert to fraction form
    35,911.60/53,870.10 = 9,615.76/x
  3. Step 3: Cross multiply
    35,911.60x = 53,870.10 × 9,615.76
  4. Step 4: Simplify right side
    35,911.60x = 518,001,952.78
  5. Step 5: Solve for x
    x = 518,001,952.78/35,911.60
  6. Step 6: Final answer
    x = 14,424.36

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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.