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Finding the Fourth Proportional to 64,526.40, 89,043.68 and 37,670.40

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Solution

The fourth proportional to 64,526.40, 89,043.68 and 37,670.40 is: 51,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,526.40 : 89,043.68 = 37,670.40 : x
  2. Step 2: Convert to fraction form
    64,526.40/89,043.68 = 37,670.40/x
  3. Step 3: Cross multiply
    64,526.40x = 89,043.68 × 37,670.40
  4. Step 4: Simplify right side
    64,526.40x = 3,354,311,043.07
  5. Step 5: Solve for x
    x = 3,354,311,043.07/64,526.40
  6. Step 6: Final answer
    x = 51,983.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.