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Finding the Fourth Proportional to 31,483.70, 47,225.50 and 21,593.00

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Solution

The fourth proportional to 31,483.70, 47,225.50 and 21,593.00 is: 32,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483.70 : 47,225.50 = 21,593.00 : x
  2. Step 2: Convert to fraction form
    31,483.70/47,225.50 = 21,593.00/x
  3. Step 3: Cross multiply
    31,483.70x = 47,225.50 × 21,593.00
  4. Step 4: Simplify right side
    31,483.70x = 1,019,739,931.39
  5. Step 5: Solve for x
    x = 1,019,739,931.39/31,483.70
  6. Step 6: Final answer
    x = 32,389.45

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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.