Home / 51,218.06-70,681.28-28,558.51

Finding the Fourth Proportional to 51,218.06, 70,681.28 and 28,558.51

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Solution

The fourth proportional to 51,218.06, 70,681.28 and 28,558.51 is: 39,410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.06 : 70,681.28 = 28,558.51 : x
  2. Step 2: Convert to fraction form
    51,218.06/70,681.28 = 28,558.51/x
  3. Step 3: Cross multiply
    51,218.06x = 70,681.28 × 28,558.51
  4. Step 4: Simplify right side
    51,218.06x = 2,018,551,722.20
  5. Step 5: Solve for x
    x = 2,018,551,722.20/51,218.06
  6. Step 6: Final answer
    x = 39,410.94

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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.