Home / 37,031.80-55,547.70-12,407.80

Finding the Fourth Proportional to 37,031.80, 55,547.70 and 12,407.80

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Solution

The fourth proportional to 37,031.80, 55,547.70 and 12,407.80 is: 18,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,031.80 : 55,547.70 = 12,407.80 : x
  2. Step 2: Convert to fraction form
    37,031.80/55,547.70 = 12,407.80/x
  3. Step 3: Cross multiply
    37,031.80x = 55,547.70 × 12,407.80
  4. Step 4: Simplify right side
    37,031.80x = 689,224,752.06
  5. Step 5: Solve for x
    x = 689,224,752.06/37,031.80
  6. Step 6: Final answer
    x = 18,611.70

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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.